U.S. patent number 10,854,974 [Application Number 15/772,180] was granted by the patent office on 2020-12-01 for antenna portions.
This patent grant is currently assigned to Hewlett-Packard Development Company, L.P.. The grantee listed for this patent is Hewlett-Packard Development Company, L.P.. Invention is credited to Sung Oh, Philip Wright.
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United States Patent |
10,854,974 |
Oh , et al. |
December 1, 2020 |
Antenna portions
Abstract
An antenna system, in one example implementation, can include
antenna portions including a first portion of the antenna to
receive a radio frequency (RF) signal. The antenna can include a
second portion capacitively coupled to the first portion, wherein
the capacitive coupling of the second portion to the first portion
increases the high-band resonances. The antenna can include a third
portion of the antenna connected to a connector. The third portion
can be capacitively coupled to the first portion to excite wide
low-band resonances and high-band resonances. The connector can be
a ground for the third portion.
Inventors: |
Oh; Sung (Palo Alto, CA),
Wright; Philip (San Diego, CA) |
Applicant: |
Name |
City |
State |
Country |
Type |
Hewlett-Packard Development Company, L.P. |
Houston |
TX |
US |
|
|
Assignee: |
Hewlett-Packard Development
Company, L.P. (Spring, TX)
|
Family
ID: |
1000005217253 |
Appl.
No.: |
15/772,180 |
Filed: |
February 19, 2016 |
PCT
Filed: |
February 19, 2016 |
PCT No.: |
PCT/US2016/018736 |
371(c)(1),(2),(4) Date: |
April 30, 2018 |
PCT
Pub. No.: |
WO2017/142561 |
PCT
Pub. Date: |
August 24, 2017 |
Prior Publication Data
|
|
|
|
Document
Identifier |
Publication Date |
|
US 20190067817 A1 |
Feb 28, 2019 |
|
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H01Q
5/385 (20150115); H01Q 1/243 (20130101); H01Q
5/392 (20150115); H01Q 1/44 (20130101); H01Q
1/2266 (20130101); H01Q 9/42 (20130101) |
Current International
Class: |
H01Q
1/24 (20060101); H01Q 5/392 (20150101); H01Q
1/22 (20060101); H01Q 1/44 (20060101); H01Q
5/385 (20150101); H01Q 9/42 (20060101) |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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2750493 |
|
Jan 2006 |
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CN |
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101414705 |
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Apr 2009 |
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CN |
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102694261 |
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Sep 2012 |
|
CN |
|
204793200 |
|
Nov 2015 |
|
CN |
|
2373637 |
|
Sep 2002 |
|
GB |
|
201448348 |
|
Dec 2014 |
|
TW |
|
512223 |
|
Nov 2015 |
|
TW |
|
Other References
Ban, Y-L et al, "Low-Profile Printed Octa-Band LTE-WWAN Mobile
Phone Antenna Using Embedded Parallel Resonant Structure", Jul.
2013. cited by applicant .
Chu, F-H et al, "Internal Coupled-Fed Dual-Loop Antenna Integrated
with a USB Connector for WWAN/LTE Mobile Handset", Aug. 11, 2011.
cited by applicant .
Chu, F-H et al, "Internal Handset Antenna Integrated with USB
Connector for WWAN/LTE Operation" Sep. 24, 2011. cited by applicant
.
Lin, C-H et al, "A Compact Experimental Planar Antenna with a USB
Connector for Mobile Phone Application", Feb. 2015. cited by
applicant .
Wong, K-L et al, "A Small Size Penta-band WWAN Antenna Integrated
with USB Connector for Mobile Phone Applications", Aug. 11-13,
2010. cited by applicant.
|
Primary Examiner: Lopez Cruz; Dimary S
Assistant Examiner: Jegede; Bamidele A
Attorney, Agent or Firm: Brooks, Cameron & Huebsch,
PLLC
Claims
What is claimed:
1. An antenna system, comprising: a first antenna portion of the
antenna to receive a radio frequency (RF) signal, the first antenna
portion comprising: a first portion extending from a feed a first
distance along a first surface of a device; a second portion
extending perpendicular to the first portion along a second surface
of the device, wherein the second portion curves back and extends a
third distance along the first surface; a second antenna portion of
the antenna capacitively coupled to the first antenna portion,
wherein the capacitive coupling of the second portion to the first
portion increases the high-band resonances; a third antenna
portion, that is a continuation of the second antenna portion, of
the antenna connected to a connector, wherein: the third antenna
portion is capacitively coupled to the first antenna portion to
excite wide low-band resonances and high-band resonances; and the
connector is a Universal Serial Bus (USB) port that is a ground for
the third antenna portion.
2. The antenna system of claim 1, wherein the first antenna portion
is a feeding arm of the antenna.
3. The antenna system of claim 1, wherein the second antenna
portion is a parasitic arm of the antenna.
4. The antenna system of claim 1, wherein the third antenna portion
is a coupled arm of the antenna system.
5. The antenna system of claim 1, wherein the connector is used as
a radiating structure of the antenna system.
6. A computing device, comprising: an antenna, wherein the antenna
comprises: a feeding arm to receive a radio frequency (RF) signal,
the feeding arm comprising: a first portion of the feeding arm
extending from a feed a first distance along a first surface of the
computing device; a second portion of the feeding arm extending
perpendicular to the first portion along a second surface of the
computing device, wherein the second portion curves back and
extends a third distance along the first surface; a parasitic arm,
wherein a first portion of the parasitic arm is proximal to the
feeding arm and a second portion of the parasitic arm is proximal
to a coupled arm; a coupled arm, that is a continuation of the
parasitic arm, connected to a connector that is a Universal Serial
Bus (USB) port such that the connector grounds the coupled arm,
wherein: a first portion of the coupled arm grounded to the
connector is proximal to the feeding arm; a second portion of the
coupled arm travels over a side portion of the connector; and a
third portion of the coupled arm distal to the feeding arm.
7. The computing device of claim 6, wherein the first portion of
the parasitic arm is capacitively coupled to the feeding arm.
8. The computing device of claim 6, wherein the second portion of
the parasitic arm is capacitively coupled to the coupled arm.
9. The computing device of claim 6, wherein the coupled arm, and
the parasitic arm are curved around an edge portion of the
computing device.
10. A method, comprising: positioning a feeding arm of an antenna
that receives a radio frequency (RF) signal proximal to a parasitic
arm of the antenna, the feeding arm comprising: a first portion of
the feeding arm extending from a feed a first distance along a
first surface of a device; a second portion of the feeding arm
extending perpendicular to the first portion along a second surface
of the device, wherein the second portion curves back and extends a
third distance along the first surface; loading the parasitic arm
of the antenna with a reactive component; adjusting an electrical
length of the parasitic arm; and tuning a lowband frequency of
parasitic arm without affecting a highband frequency based on the
electrical length, wherein the parasitic arm is proximal to a
coupled arm; and connecting the coupled arm to a connector that is
a Universal Serial Bus (USB) port such that the connector grounds
the coupled arm.
11. The method of claim 10, comprising capacitively coupling the
feeding arm to the parasitic arm.
12. The method of claim 10, comprising positioning a coupled arm of
the antenna proximal to the feeding arm.
13. The method of claim 12, comprising capacitively coupling the
coupled arm to the feeding arm.
14. The method of claim 10, wherein the reactive component is one
of a capacitor and an inductor.
Description
BACKGROUND
An antenna may be used to facilitate wireless communication. An
antenna may be used in connection with a computing device to
facilitate wireless communication of the computing device.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 illustrates a diagram of an example of a system according to
the disclosure.
FIG. 2 illustrates a diagram of an example of a computing device
including antenna portions according to the disclosure.
FIG. 3 illustrates a diagram of an example of a computing device
including antenna portions according to the disclosure.
FIG. 4 illustrates a diagram of an example of a computing device
including antenna portions according to the disclosure.
FIG. 5 illustrates a flow diagram of an example of a method for
antenna portions according to the disclosure.
DETAILED DESCRIPTION
As computing device specifications change, space allocation within
computing devices may change. For example, as mobile and/or
portable computing devices (referred to generally herein as
"computing devices") become smaller, thinner, and/or lighter,
component placement within the device may present challenges. For
example, challenges involving antenna placement may arise when an
antenna associated with a computing device is disposed near a
microphone, speaker, port (e.g., a universal serial bus), etc. of
the computing device. Computing devices, as used herein include
smartphones, phablets, handheld computers, personal digital
assistants, carputers, wearable computers, laptops, tablet
computers, laptop/tablet hybrids, etc.
In some examples, it may be desirable to provide wide- and
multi-band antennas of computing devices. However, antenna design
can be limited with such a size of antenna. In addition, for a
computing device with a thin profile including a USB (Universal
Serial Bus) port located on a bottom of the computing device, a
volume of the computing device can be increased or radiation
performance can be decreased. Increasing antenna volume can
negatively affect industrial design of the computing design.
Notably, examples described herein can allow a USB port to be used
as a radiation structure in a particular orientation with respect
to antenna components in order to avoid such negative outcomes.
Computing devices can include an antenna to send and/or receive
signals. For example, an antenna can be used in conjunction with a
computing device to facilitate voice and/or data transfer. In some
examples, an antenna can be used in conjunction with a computing
device to facilitate telephonic communication, web access, voice
over IP, gaming, high-definition mobile television, video
conferencing, etc. However, space constraints associated with some
computing device form factors and/or some material choices may
impact antenna placement and/or antenna performance.
Examples of the disclosure include methods, systems, and
apparatuses employing an antenna. For example, a system may include
a computing device and an antenna comprising a first antenna
portion (e.g., a feeding arm), a second antenna portion (e.g., a
parasitic arm), and a third antenna portion (e.g., a coupled arm).
In some examples, the first antenna portion can be capacitively
coupled to the second antenna portion and the first antenna portion
can be capacitively coupled to the third antenna portion. In some
examples, a system may further include a USB used as a radiating
structure that grounds the third antenna portion (e.g., a coupled
arm of the antenna).
FIG. 1 illustrates a diagram of an example of a system 100
according to the present disclosure. As shown in the example of
FIG. 1, the system 100 can include a first antenna portion 110 of
an antenna, a second antenna portion 112 of the antenna, and a
third antenna portion 114 of the antenna. The first antenna portion
110 includes a first portion 110-1 and a second portion 110-2. The
first portion 110-1 can be in communication with a feed 111. The
first antenna portion 110 can refer to a feeding arm of the
antenna. The feeding arm can be excited directly by a radio
frequency (RF) signal source. An RF signal source can include a
source of a radio frequency. RF refers to any electromagnetic wave
frequencies that lie in a range from around 3 kHz to 300 GHz. RF
can refer to electrical oscillations.
The second antenna portion 112 includes a first portion 112-1 and a
second portion 112-2. The second antenna portion 112 can refer to a
parasitic arm of the antenna. The first portion 110-1 of the
feeding arm and the first portion 112-1 of the parasitic arm can be
capacitively coupled together, at 132. For example, a
electromagnetic coupling field between the first portion 110-1 and
the first portion 112-1 can allow the first portion 110-1 and the
first portion 112-1 to be in electromagnetic (EM) communication.
The EM communication between two portions of an antenna can be
based on a particular distance and/or orientation of the two
portions. For example, when a first portion 110-1 is a particular
distance from a first portion 112-1, an EM communication can be a
particular strength. In response to the two portions being further
apart, the EM communication can be weakened and/or strengthened
depending on the fields associated with the particular distance.
The second antenna portion (e.g., parasitic arm) 112 capacitively
coupled to the first antenna portion 110 creates multi-resonances
in a high band of the RF signal source to expand the high band
resonances created by the first antenna portion 110 and the third
antenna portion 114 as will be further described herein.
A third antenna portion 114 includes a first portion 114-1, a
second portion 114-2, and a third portion 114-3. A front end of the
first portion 114-1 can be grounded 128 to a connector (e.g.,
Universal Serial Bus (USB) port) 130. The connector 130 may be a
universal serial bus (USB), or other port or bus capable of
providing communication and/or power supply to and/or from a
computing device. The third antenna portion (e.g., coupled arm) 114
can be capacitively coupled to the first antenna portion 110 in
order to create multi-resonances in a low band and a high band
frequency ranges. The high band resonances created by the third
antenna portion 114 is further expanded by the high band resonances
created by the first antenna portion 110 and the second antenna
portion 112.
At least a portion of the second antenna portion 112 and/or the
third antenna portion 114 may be connected to a system ground 108
associated with a computing device. In some examples, the third
antenna portion 114 can be in physical contact with port 130
connected to the system ground 108 The port may be a universal
serial bus (USB), or other port or bus capable of providing
communication and/or power supply to and/or from a computing
device.
FIG. 2 illustrates a diagram of an example of a computing device
including an antenna according to the disclosure. As shown in the
example of FIG. 2, the computing device 202 can include a first
antenna portion 210 of an antenna, a second antenna portion 212 of
the antenna, and a third antenna portion 214 of the antenna. The
first antenna portion 210 includes a first portion 210-1 and a
second portion 210-2. The first portion 210-1 can start at a feed
211 and travel along the illustrated top portion of computing
device 202, curve down at a general 90 degree turn (e.g., to result
in a generally orthogonal relationship) and then travel sideways
along a front side of the computing device 202. The first portion
210-1 forms an L, as illustrated, and continues as the second
portion 210-2. The first portion 210-1 can be in communication with
a feed 211. The section portion 210-2 curves back toward the first
portion 210-1 in a sideways direction forming a "U." The first
antenna portion 210 can refer to a feeding arm of the antenna. The
feeding arm can be excited directly by a radio frequency (RF)
signal source.
The second antenna portion 212 includes a first portion 212-1 and a
second portion 212-2. The first portion 212-1 can travel along a
top portion of the computing device 202, alongside the first
portion 210-1, and curve similarly downward in a generally 90
degree turn along a front side of the computing device 202
(resulting in a generally orthogonal relationship, as illustrated).
The first portion 212-1 can then turn sideways in a direction away
from the first portion 210-1. The first portion 212-1 then turns
into the second portion 212-2 and turns back in a generally 90
degree turn (e.g., two 45 degree turns, as illustrated, but not
limited to these specific turns) to rejoin with a front side of the
computing device 202. The second antenna portion 212 can refer to a
parasitic arm of the antenna. The first portion 210-1 and the first
portion 212-1 can be capacitively coupled together, at 232. For
example, a capacitive field can allow the first portion 210-1 and
the first portion 212-1 to be in communication by way of a
capacitive field between them. The second antenna portion (e.g.,
parasitic arm) 212 capacitively coupled to the first antenna
portion 210 creates multi-resonances in a high band of the RF
signal source to expand the high band resonances created by the
first antenna portion 210 and the third antenna portion 214.
A third antenna portion 214 includes a first portion 214-1, a
second portion 214-2, and a third portion 214-3. The first portion
214-1 can travel along a top portion of the computing device 202
parallel and proximal to the second portion 210-2. A second portion
214-2 is a continuation of the first portion 214-1 after a 180
degree turn and/or pivot point where the second portion 214-2
travels away from the first antenna portion 210 and the second
antenna portion 212. The second portion 214-2 also can travel over
and alongside a top of the connector 230. The second portion 214-2
can make a downward path and continue to extend to a side of the
computing device.
The third portion 214-3 can be a continuation of the second portion
214-2 and make two sharp 90 degree turns at the side of the
computing device 202 and then turns back towards the connector 230
before forming a U and turning back toward the side, as
illustrated. The first portion 214-1 can be grounded to a connector
(e.g., Universal Serial Bus (USB) port) 230. The connector 230 may
be a universal serial bus (USB), or other port or bus capable of
providing communication and/or power supply to and/or from a
computing device. The third antenna portion (e.g., coupled arm) 214
can be capacitively coupled, at 234 to the first antenna portion
210 in order to create multi-resonances in a low band and a high
band frequency ranges. The high band resonances created by the
third antenna portion 214 is further expanded by the high band
resonances created by the first antenna portion 210 and the second
antenna portion 212.
FIG. 3 illustrates a diagram of an example of a computing device
including an antenna according to the disclosure. As shown in the
example of FIG. 3, the computing device can be similar and mirror
the computing device 202 in FIG. 2. For example, as illustrated in
FIG. 2, the second antenna portion 212 is illustrated on a left
side of the computing device 202. In FIG. 3, the second antenna
portion 312 is illustrated on the right. The antenna portions can
be placed in a particular location based on a number of other
components (e.g., USB ports, metal components, speaker systems,
etc.) in order to maximize efficiency of the antenna, minimize
interference, etc. A first antenna portion 310 is located to the
right of connector 330 and the third antenna portion 314 is
illustrated to the left of the connector 330. The second antenna
portion 312 is on the right-most edge of the computing device.
The first antenna portion 310 can be capacitively coupled to the
second antenna portion 312. The first antenna portion 310 can be
capacitively coupled to the third antenna portion 314. Even though
antenna components are rearranged and/or flipped from one side to
another, the couplings and/or interactions can be the same as those
described in association with FIG. 2. A window 340 of FIG. 3 can be
expanded as 440 in FIG. 4.
FIG. 4 illustrates a diagram of an example of a portion 440 of a
computing device including an antenna. The antenna can include a
portion 414 (e.g., third antenna portion 214 and 314 in FIGS. 2 and
3) that is grounded, at 428, to a connector 430. The connector 430
can be a Universal Serial Bus (USB) port. The USB can be coupled to
a PCB 408.
FIG. 5 illustrates a flow diagram of an example of a method 505 for
an antenna according to the disclosure. At 550, the method 505 can
include positioning a portion of an antenna that receives a radio
frequency (RF) signal proximal to an additional portion of the
antenna. The additional portion of the antenna (e.g., third antenna
portion 314 in FIG. 3) can be located next to the portion that
receives the RF signal to capacitively couple them together.
At 552, the method 505 can include loading the additional portion
of the antenna with a reactive component (e.g., at 428 in FIG. 4).
The additional portion can be loaded with a capacitor and/or an
inductor instead of being grounded. A number of reactive components
can be loaded onto the additional portion. The number of reactive
components can be associated with a level of adjustment of the low
band resonance adjustments. Low band resonance adjustments can be
adjustments to a low band frequency. In some examples, low band
frequency can refer to radio frequencies in the range of 700 MHz-1
GHz.
At 554, the method 505 can include adjusting an electrical length
of the additional portion. The adjusting of the electrical length
can affect a low band resonance frequency range. At 556, the method
505 can include tuning a low band frequency of the additional
portion. For example, a length of the coupled arm (such as an
electrical length) can be a main tuning parameter for a low band
frequency. Tuning of the low band frequency can be performed
without affecting a high band frequency. Tuning can include
amplifying RF oscillations within a particular frequency band
and/or bands. Tuning can include reducing oscillations at other RF
frequencies outside the particular frequency band and/or bands.
In some examples, the method can include capacitively coupling a
portion of the antenna (e.g., a feeding arm) to an additional
portion (e.g., a parasitic arm). In some examples, the method can
include positioning a third portion (e.g., a coupled arm) of the
antenna proximal to the portion (e.g., a feeding arm). The method
can include capacitively coupling the third portion (e.g., the
coupled arm) to the portion (e.g., the feeding arm). The method can
include using a reactive component that is a capacitor. In some
examples, the method can include using a reactive component that is
an inductor. Use of a capacitor or an inductor can allow adjustment
of the low band frequency.
In this way, the present disclosure describes a unique antenna
structure that uses a USB port as a radiation structure to overcome
possible negative radiation performance due to a USB port assembly.
In addition, a low-profile configuration can be setup using the
particular configurations and/or orientations of the portions of
the antenna described above. This allows for a broader range of
industrial designs for the computing device. In addition, a wider
bandwidth is achieved.
In the foregoing detailed description of the disclosure, reference
is made to the accompanying drawings that form a part hereof, and
in which is shown by way of illustration how examples of the
disclosure may be practiced. These examples are described in
sufficient detail to enable those of ordinary skill in the art to
practice the examples of this disclosure, and it is to be
understood that other examples may be utilized and that process,
electrical, and/or structural changes may be made without departing
from the scope of the disclosure.
The figures herein follow a numbering convention in which the first
digit corresponds to the drawing figure number and the remaining
digits identify an element or component in the drawing. For
example, reference numeral 110 may refer to element "10" in FIG. 1
and an analogous element may be identified by reference numeral 210
in FIG. 2. Elements shown in the various figures herein can be
added, exchanged, and/or eliminated so as to provide a number of
additional examples of the disclosure. In addition, the proportion
and the relative scale of the elements provided in the figures are
intended to illustrate the examples of the disclosure, and should
not be taken in a limiting sense. Further, as used herein, "a
number of" an element and/or feature can refer to one or more of
such elements and/or features.
As used herein, "substantially" and/or "generally" refers to a
characteristic that is close enough to the absolute characteristic
to achieve the same functionality. For example, substantially
orthogonal directions can be directions that, even if not aligned
perfectly at 90 degrees, are close enough to 90 degrees to achieve
the characteristic of being at 90 degrees.
* * * * *